Coordinated by Antoine Fleury and Matthieu Delage (ACP, UPEM), this research project aims to study commercial dynamics and retailers’ strategies within several Parisian neighbourhoods targeted by the “Politique de la Ville”, a set of policies intended to reduce social divides and inequalities. Funded by a public agency of the City of Paris, called SEMAEST, this study is based on a quantitative analysis of the retail landscape and a questionnaire survey in these neighborhoods. Its main objectives are (1) to characterize the retailers’ relationship to their neighbourhood, and the strategies they develop in a context of social and urban change; (2) to identify the role of digital tools in their practices and strategies.